CN104033363A - Fan - Google Patents

Abstract

A fan which comprises a base and a nozzle which is arranged on the base; the nozzle comprises an internal channel and an air outlet; the base comprises a housing, an impeller cover, an impeller, a motor casing, a motor and a first supporting component; the impeller cover is located in the housing; the impeller is located in the impeller cover; the motor casing is connected with the impeller cover; the motor is located in the motor casing; the first supporting component comprises a spring element; the first supporting component is used for supporting the impeller cover in the housing; the first supporting component is arranged on a pedestal and connected with the impeller cover, wherein the pedestal is connected onto the housing.

Description

Fan

Technical field

The present invention relates to a kind of fan.Especially, but not in exclusive manner, the present invention relates to a kind of domestic fan, as family expenses desk fan, for increasing air circulation and the Air Flow in indoor, office and other environment.

Background technique

Traditional domestic fan generally includes motor and by motor, is driven one group of blade or the impeller be rotated.This group blade is usually located in cage, and this cage allows air-flow to pass, yet but stops human body to touch the blade of rotation.But in some cases, this kind of fan also exists the risk that human body touches this group rotation blade.

It is that CN 101825105 B Chinese patents have been described a kind of fan that on June 13rd, 2012 is authorized publication number, this kind of fan comprises pedestal and is arranged on the nozzle on pedestal, described pedestal comprises shell, is contained in the impeller chimney in described shell, the impeller that is positioned at impeller chimney and drives impeller to produce the motor through the air-flow of impeller chimney, described nozzle comprises for receiving the inner passage of air-flow and for launching the relief opening of air-flow, impeller chimney by a plurality of supports support in pedestal.Each supporting element is installed in again on stayed surface separately, and described stayed surface extends internally from the inner surface radial direction of pedestal.

Summary of the invention

The present invention aims to provide a kind of improved fan.This kind of fan, is characterized in that, described fan comprises pedestal and is arranged on the nozzle on described pedestal; Described nozzle comprises for receiving the inner passage of air-flow and for launching the relief opening of air-flow; Described pedestal comprises shell, be positioned at the impeller chimney of shell, be positioned at impeller chimney impeller, the motor casing being connected with impeller chimney, be positioned at the motor of motor casing and there is the first supporting member of spring element; Described the first supporting member is used for supporting described impeller and covers in described shell, and described the first supporting member is installed on the pedestal that is connected to described shell and with described impeller chimney and is connected.

Have advantage, compare for supporting the situation of impeller chimney with a plurality of supporting elements, first supporting member with spring element can obviously reduce for supporting impeller chimney vibration and the noise that is delivered to shell from motor casing.

Preferably, described spring element has two ends, and one end of described spring element is connected with described pedestal, and the other end of described spring element is connected with described impeller chimney.

Preferably, described the first supporting member comprises the first fixed block and the second fixed block being connected with described spring element, described spring element is between the first fixed block and the second fixed block, and described the first fixed block is connected with described impeller chimney, and described the second fixed block is connected with described pedestal.Described the first fixed block comprises ring member; Described the second fixed block also comprises ring member.

Preferably, described the first supporting member has a plurality of, and a plurality of the first supporting members are arranged in described shell with multi-angle to support equably the weight of impeller, impeller chimney, motor and motor casing.

Described fan can also comprise second supporting member with spring element and the pneumatic tube with inlet end and outlet side, described pneumatic tube is for being transported to nozzle by the formed air-flow of impeller, described the second supporting member is installed on described pedestal and with described pneumatic tube and is connected, the inlet end of described pneumatic tube is connected with described impeller chimney, and the outlet side of described pneumatic tube is connected with described nozzle.

Described pedestal can comprise circular plate, also can comprise the circular plate with central hole position.Described pedestal preferably extends internally from the inner surface radial direction of described shell.Described pedestal is preferably one with described shell.

Described fan can also comprise the sealing component between described pedestal and described impeller chimney.Described sealing component preferably includes one section of flexible pipe, and one end of this flexible pipe is connected with pedestal, and the other end of this flexible pipe is connected with impeller chimney.

Described fan can limit at least one opening; Preferably, described nozzle limits opening.The air of fan outside is entrainmented by described opening by the air-flow of launching from described relief opening.The height of described nozzle is preferably between between 200mm to 600mm, more preferably between between 250mm to 500mm.

Described relief opening can be positioned near the place, front portion or front portion of described nozzle, also can be positioned near the rear portion of described nozzle.Described relief opening is preferably slot-shaped relief opening, and the width of its slot-shaped relief opening is conventionally between 0.5mm to 8mm, preferably between 1mm to 5mm.

Described motor can be alternating current motor, can be also DC Brushless Motor; Described impeller can be centrifugal impeller, can be also mixed flow impeller, is preferably mixed flow impeller.The rotating speed of described impeller is usually located between 800rpm to 9000rpm, is preferably located between 1200rpm to 7500rpm.

Accompanying drawing explanation

Referring now to accompanying drawing explanation embodiments of the present invention, in the accompanying drawings.

Figure l is the front schematic view of fan of the present invention.

Fig. 2 is the side view of the fan shown in figure l.

Fig. 3 is the front decomposition view of the fan shown in Fig. 1.

Fig. 4 is the decomposition side view of the fan shown in Fig. 1.

Fig. 5 is the amplification view that the A-A line along Fig. 3 observed from the F direction of Fig. 3 intercepts.

Fig. 6 is the amplification view that the B-B line along Fig. 4 intercepts.

Fig. 7 has shown the another kind of replacing structure of fan shown in Fig. 6.

Fig. 8 is that the fan shown in Fig. 1 turns to forward the side view of a certain position at nozzle.

Fig. 9 is that the fan shown in Fig. 1 rotates back to the side view of a certain position at nozzle.

Embodiment

Figure l is that Fig. 2 is the side view of the fan shown in Fig. 1 from the schematic diagram of the fan of the present invention of device forward observation, and Fig. 3 is the front decomposition view of the fan shown in Fig. 1, and Fig. 4 is the decomposition side view of the fan shown in Fig. 1.From Fig. 1 to Fig. 4, can find out, fan 50 comprises pedestal 2 and is positioned at the nozzle 1 on pedestal 2; Pedestal 2 comprises base 13 and is positioned at the base portion 11 on base 13.Pedestal 2 has import 18, and import 18 is the form that is formed on a plurality of holes on the shell 12 of pedestal, and air is inhaled in shell 12 from fan outside by import 18.

Nozzle 1 comprises the annular outer cover body 3 of non-closure, two input ends 45 and 46, the inner passage being limited by this annular outer cover body 3 and relief openings 7; Two input ends 45 of nozzle 1 and 46 two circular holes 21 that stretch into respectively on the both sides, top that are positioned at pedestal 2.Pedestal 2 and nozzle 1 define opening 8 jointly.

Pedestal 2 further comprises for allowing user to operate the user interface of fan 50.This user interface comprises a plurality of buttons 15,16,17 of user-operable.

Fig. 5 has shown the structure of nozzle interior.As can see from Figure 5, the toroidal shell 3 of nozzle comprises housing 4, housing 5 and housing 6; Inner passage 20 is limited jointly by housing 4, housing 5 and housing 6, and relief opening 7 is limited with the apparent surface of housing 5 by housing 4; Fixing device 19 is arranged in inner passage 20, and this fixing device 19 and relief opening 7 be D at intervals, and this fixing device 19 is integrated with housing 4 and housing 5, and relief opening 7 is positioned at the front end place of nozzle 1, and is set to launch air-flow before fan.In the present embodiment, relief opening 7 is slot-shaped relief opening, and the width of its relief opening 7 is 1.2mm, and fixing device 19 is 16mm with the distance D of relief opening 7.

Fig. 6 has shown the internal structure of pedestal 2.As can be seen from Figure 6, pedestal 2 comprises the base 13 with shell 14 and the base portion 11 with shell 12, is provided with the motor 24 of impeller chimney 22, impeller 23 and drives impeller 23 rotary works in the shell 12 of base portion 11.Impeller 23 is positioned at impeller chimney 22, and impeller chimney 22 comprises import 26, outlet 27, inlet end 28 and outlet side 29.

Motor 24 is contained in motor casing 34.Motor casing 34 comprises upper part 36 and lower part 35, and upper part 36 is fixed and motor 24 is fixed therein by screw and lower part 35.The rotating shaft 31 of motor 24 is through the hole that is formed on lower part 35 bottoms of motor casing 34, to allow impeller 23 to be connected in rotating shaft 31.The upper part 36 of motor casing 34 also comprises a plurality of fixing rods 37, and motor 24 is fixing with impeller chimney 22 by motor casing 34.

In the present embodiment, impeller 23 and impeller chimney 22 are configured as when impeller 23 and motor casing 34 are supported by impeller chimney 22, the blade tips of impeller 23 very approaches the internal surface of impeller chimney 22, but does not touch this internal surface, and impeller 23 is roughly coaxial with impeller chimney 22.

On impeller chimney 22, be provided with cable punching hole (not shown in FIG.), on a fixing rod 37 of motor casing 34, be also provided with cable punching hole (not shown in FIG.), cable punching hole on impeller chimney 22 is aimed at cable can be passed with the cable punching hole on fixing rod 37, facilitates cable to be connected to motor 24 from circuit arrangement 44.In the present embodiment, motor casing 34, impeller chimney 22 and impeller 23 are preferably formed by plastics.

In shell 12, be also provided with the pneumatic tube that the formed air-flow of impeller 23 is transported to nozzle 1.This pneumatic tube comprises the first pneumatic tube 40 and the second pneumatic tube 43.The first pneumatic tube 40 is preferably one section of flexible pipe, as one section of rubber pipe, uses flexible pipe be conducive to decay some vibrations and the noise of motor and impeller to transmit or amplification to shell 12 and nozzle 1.One end of this first pneumatic tube 40 is connected with motor casing 34, and the other end of this first pneumatic tube 40 is connected with the second pneumatic tube 43.The second pneumatic tube 43 is a three-way pipe, this three-way pipe and shell 12 fixing (not shown in FIG.).And with reference to figure 3, this three-way pipe has a feed opening 48 and two outlet openings 38,39, the input end with feed opening 48 of this three-way pipe is connected with the first pneumatic tube 40, two output terminals 41,42 with outlet opening 38,39 of this three-way pipe and two input ends 45,46 of nozzle 1 are rotationally connected, and at these two places of being rotationally connected, seal ring (not shown in FIG.) are set.

Impeller chimney 22 is supported by a plurality of the first supporting members 31.In Fig. 6, can be clear that, this first supporting member 31 is a spring element.In the present embodiment, the quantity of the first supporting member 31 is 6, and the quantity of spring element is 6, and the upper end of spring element is fixing with the projection 30 being formed on impeller chimney 22 outer surfaces, and the lower end of spring element is fixed on the pedestal 321 being connected with shell 12.This pedestal 321 is for having the circular plate of central hole position, and this circular plate and shell 12 with central hole position is integrated.Because the first supporting member 31 is spring element, spring element can effectively absorb some vibrations and the noise from motor 24 and impeller 23, otherwise these vibrations and noise are easily passed to shell 12 and amplified by impeller chimney 22.

Fig. 7 has shown the another kind of replacing structure of fan shown in Fig. 6.As can be seen from Figure 7, the structure described in Fig. 7 is similar to Fig. 6, and just the length of pedestal 32 and spring element is different.In the present embodiment, the base plate 322 that pedestal 321 is connected with shell 12 is integrated, and the length of spring element is longer.Longer spring element is conducive to absorb more vibration and noise from motor 24 and impeller 23.

Base 13 is for engaging the surface at fan 50 places.Base portion 11 comprises user interface and the circuit arrangement 44 being arranged on the base plate 322 that shell 12 is connected, and circuit arrangement 44 is for responding the various operations of user interface.Pedestal 2 also comprises the swing mechanism for base portion 11 is swung back and forth with respect to base 13, and this swing mechanism comprises syncmotor 47, and the button 17 that the operation of swing mechanism is pressed user interface by circuit arrangement 44 response users is controlled.Hunting range is preferably between 60 ° and 120 °, and swing mechanism is set to 3 to 6 deflection periods of execution per minute.For supplying power to the main power line (not drawing) of fan, through the hole being formed on base 13, extend.

In the present embodiment, motor 24 is DC Brushless Motor, and the rotating speed of motor can change by circuit arrangement 44 response user operation knobs 16.The maximum speed of motor 24 is preferably in the scope of 6000rpm to 8000rpm.

In order to operate fan, user presses the button 15 of user interface, responds this operation, and circuit arrangement 44 activates motor 24 with rotary blade 23.The rotation of impeller 23 makes air enter in the shell 12 of pedestal 2 by import 18.User can carry out by handling knob 16 rotating speed of governor motor 24.Pneumatic tube receives from the formed air-flow of impeller 23 and is divided into two strands, is transported to respectively two input ends 45,46 of nozzle 1 and enters in nozzle 1.

In nozzle 1, two strands of air-flows are advanced respectively in the inner passage 20 of nozzle.The air-flow of advancing in inner passage 20 is deflated 7, mouth and launches, fan part air is around entrainmented by opening 8 by the air-flow of being launched from relief opening 7, forms the total air flow of launching forward from nozzle 1 like this from the air-flow of relief opening 7 transmittings and the combination of the air-flow being entrainmented.

Fig. 8 has shown that the fan shown in Fig. 1 turns to forward the side view of a certain position at nozzle 1, and Fig. 9 has shown that the fan shown in Fig. 1 rotates back to the side view of a certain position at nozzle 1.From Fig. 8 and Fig. 9, easily find out, nozzle 1 can rotate relative to pedestal 2.This rotation can regulate the air-out orientation of nozzle 1, and the air-out orientation of nozzle 1 is changed on vertical plane, to meet user's different demands.

Although shown and described and thought at present preferred embodiments of the invention, apparent, those skilled in the art can carry out various changes and improvements, and does not deviate from scope of the present invention as defined in appended claims.

Claims (10)

1. a fan, is characterized in that, described fan comprises pedestal and is arranged on the nozzle on described pedestal; Described nozzle comprises for receiving the inner passage of air-flow and for launching the relief opening of air-flow; Described pedestal comprises shell, be positioned at the impeller chimney of shell, be positioned at impeller chimney impeller, the motor casing being connected with impeller chimney, be positioned at the motor of motor casing and there is the first supporting member of spring element; Described the first supporting member is used for supporting described impeller and covers in described shell, and described the first supporting member is installed on the pedestal that is connected to described shell and with described impeller chimney and is connected.

2. the fan as described in claim l, is characterized in that, described spring element has two ends, and one end of described spring element is connected with described pedestal, and the other end of described spring element is connected with described impeller chimney.

3. fan as claimed in claim 1, it is characterized in that, described the first supporting member comprises the first fixed block and the second fixed block being connected with described spring element, described spring element is between the first fixed block and the second fixed block, described the first fixed block is connected with described impeller chimney, and described the second fixed block is connected with described pedestal.

4. the fan as described in claim l, is characterized in that, described the first supporting member has a plurality of, and a plurality of the first supporting members are arranged in described shell with multi-angle to support equably the weight of impeller, impeller chimney, motor and motor casing.

5. the fan as described in claim l, it is characterized in that, described fan also comprises second supporting member with spring element and the pneumatic tube with inlet end and outlet side, described the second supporting member is installed on described pedestal and with described pneumatic tube and is connected, the inlet end of described pneumatic tube is connected with described impeller chimney, and the outlet side of described pneumatic tube is connected with described nozzle.

6. the fan as described in one of claim l to 5, is characterized in that, described pedestal comprises circular plate.

7. the fan as described in one of claim l to 5, is characterized in that, described pedestal comprises the circular plate with central hole position.

8. the fan as described in one of claim l to 5, is characterized in that, described pedestal extends internally from the inner surface radial direction of described shell.

9. the fan as described in one of claim l to 5, is characterized in that, described pedestal and described shell are one.

10. the fan as described in one of claim l to 5, is characterized in that, described fan also comprises the sealing component between described pedestal and described impeller chimney.